3.1.1.2.1 Regions

The Regions group of elements control the output area and clipping properties in the playback device context.

Element name	Type	Set by
Clipping	RegionData (section 2.2.24)	EMR_EXCLUDECLIPRECT (section 2.3.2.1) EMR_EXTSELECTCLIPRGN (section 2.3.2.2) EMR_INTERSECTCLIPRECT (section 2.3.2.3) EMR_OFFSETCIPRGN (section 2.3.2.4)
MetaClipping	RegionData	EMR_SETMETARGN (section 2.3.2)
Viewport	UINT8[16]	EMR_SCALEVIEWPORTEXTEX (section 2.3.11.7) EMR_SETVIEWPORTEXTEX (section 2.3.11.28) EMR_SETVIEWPORTORGEX (section 2.3.11.29)
Window	UINT8[16]	EMR_SCALEWINDOWEXTEX (section 2.3.11.8) EMR_SETWINDOWEXTEX (section 2.3.11.30) EMR_SETWINDOWORGEX (section 2.3.11.31)

Clipping: The current clipping region, which with MetaClipping defines the bounds of the drawing area. The default value for the Clipping element is implementation-specific.<92>

MetaClipping: The current metaregion, which with the Clipping region defines the bounds of the drawing area.

Viewport: A rectangular drawing area using coordinates in the device space.

Element name	Type	Set by
Extent	SizeL ([MS-WMF] section 2.2.2.22)	EMR_SCALEVIEWPORTEXTEX EMR_SETVIEWPORTEXTEX
Origin	PointL ([MS-WMF] section 2.2.2.15)	EMR_SETVIEWPORTORGEX

Extent: Horizontal and vertical sizes of the drawing area in device units.

Origin: Point value of the origin of the drawing area in device units.

Window: A rectangular drawing area using the coordinates of the page space.

Element name	Type	Set by
Extent	SizeL	EMR_SCALEWINDOWEXTEX EMR_SETWINDOWEXTEX
Origin	PointL	EMR_SETWINDOWORGEX

Extent: Horizontal and vertical sizes of the drawing area in logical units.

Origin: Point value of the origin of the drawing area in logical units.